SLC 500 program to CL 5000 using indexed addressing

kab3472 · Dec 21, 2009

I have a complex SLC program that used doubel index addressing. For example N[N47:162]:[N47:1]. When it coverts through the AB conversion tool in comes into logix 5000 as N[N47_162][N47_1] with a PCE (program conversion error). Anyone out there now to to solve this problem?

OkiePC · Dec 21, 2009

I don't think you can use two indirect portions in the same field in C-logix.

Perhaps the data needs to be restructured as an array with two dimensions?

kab3472 · Dec 21, 2009

I was affraid of this.... Guess I can't be lazy on this conversion

jstolaruk · Dec 21, 2009

Why can't you create a 2x2 array of DINTs or INTs? Call it "N" if you like. The difference it that you can't use N[ X[x], Y[w] ] in an instruction but with a two more move instructions preceding, you can do
MOV X[x] A
MOV Y[w] B
so that N[A,B] would be valid.

Phrog30 · Dec 22, 2009

I would use a 2-dim array.

SLC 500 program to CL 5000 using indexed addressing

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